It's not particularly fast, for instance. The golang GC has pretty short pause times but its actual throughput in GB/s collected does not stand out. Short pause

It's not particularly fast, for instance. The golang GC has pretty short pause times but its actual throughput in GB/s collected does not stand out. Short pause times are nice for interactive systems but don't matter as much for eg batch or background jobs, where total time to completion is much more important. The sister comment also has a link to a GH issue detailing many more specific flaws of the GC.